Rotary engine.



Z. T. RUSSELL.

ROTARY ENGINE. APPLICATION FMD DEc.12.1912.

Patented Nov. 16, 1915.

Witness y Inventor,

U l 1 s.

nomini( ENGINE.

igieoaso.

To all whom t may concern Y f Be it known that l, ZAGHARY yT. RUSSELL, a citizen of the United States,v residing at Hattiesburg, in the county of Forest and State of Mississippi, have invented a new and useful Rotary Engine, of which the following is a specification. y

My invention relates to new and useful improvements in a rotary engineand more particularly to an engine ofk this type using steam as the propelling power.

The object of the invention is the construction of an engine of this character in which the piston is held in such position as to be readily acted upon bythe steam.

A further object is the provision of means for preventing the loss ofsteam between the stator and rotor. a y

lVith the above and other objects yin view which will appear as the description proceeds, the invention resides in the combination and arrangement of ,parts and in the details of construction hereinafter described and claimed, it being understood that changes in theprecise embodiment of the invention herein 4disclosed can be made within the scope of what'is claimed without departing from the spirit of the invention.v

in theV drawings L 4 l Figure l is a side elevationwith parts broken away to more clearly show the invention. Fig. 2 is a. vertical section on line A--A of Fig. l. Fig. 3 is a sectional view on line B-B of Fig. l. Fig. 4L is a sectional View on line C--Cof Fig. l.

In the drawings, the numeral lV indicates vthe stator, having the side plates 2, between which the rotor 3 mounted upon the axle l 1 rotates. Fluid is ladmitted by thepipe 5 and eXhausted through the pipe 6. A swinging abutment 7 is pivoted in a recess formed in the stator and is held inits operative position by meanjsof a spring S.V A piston 9 is pivotedk in a recess formed in the rotor and is engaged on its under side by the spring l0 and' on thetop by ther spring ll. As clearly shown in the drawings, the spring ll is of greater length yand strength than the spring l0 and when the pressureof the l'luid is released from the piston the spring 11 will'slightly overcome the spring l0 and allow the piston to move out otcontact with the stator and thereby save wear on both the piston and stator.

As shown in Fig. 4, I have kprovided the two plates l2 which are secured to the stator Specification of Letters ratent.`

i 'atene-ee Nev. ie, isis.

Appncatiafiied December' 1,2, isis.' g )sensi no. resales.

point of the abutment to prevent the loss of n y fluid. f

in order to prevent fluid from leaking out from between the stator and rotor l have provided the packing rings l5 which fit in grooves formed in the stator and rotor.

. F ig. 3 is taken onthe line B-B of Fig.

l and as shown the piston is ofsuch width as to engage the packing rings l5 and prevent loss oi' fluid at the piston.

T/Vhile in the drawings l have only shown een@ .-@WQE- one piston itV will be understood that any y number may be used. v

It is thought that from the foregoing description the operation will be fully understood. The fluid which is preferably steam is admittedv through the pipe 5 and con-. vtacts with the abutment, and piston 9, and;v thereby rotates the rotor 3. The steam is` exhausted throughfthe pipe and after the pressure is relieved from they piston the spring 11 is of such Vstrength as to slightly overcome the spring `1,0 and allow the pis;- ton to move away from engagement with;

the stator.' The piston is held insuchposition until after it passes the abutment when it will be engaged by .the steam and the pressurev of the steam withthe aid of the spring 10 will overcome the spring 11 and forces the` piston into tight contact with thev stator.

Having fully described my invention,

what/l claim and desire to secure by Let#v ters Patent is:

yA rotary-engine, including a'stator hav-l ing .a rotor chamber with diametrically dis-4 posed intake .and exhaust ports, a rotor mounted inthe chamber, a swinging abutment connected to the stator, a swinging piston rcarried by the rotor for movement within and beyond the periphery of the ro- Y tor, a spring engaging to hold the under side of said piston beyond the periphery of the rotor, 'and a flat spring attached to the peripheral face of the rotor and having its free end engagingthe upper side ol the piston, the last spring being of such a strength..-

as to partly overcome the spring engaging the under side of the piston, whereby under running conditions the pressure iiuid moves `the piston outwardly tok engage the periphery ofthe' stator, the upper spring overcom-y v j the stator but pfojeotedbeyond the perph- Y Vitnesses: e j 5 ery of the rotor. Y f L f K 'ing-,the dei" spring when the rotot not own, YI have heeto afxed'my Signa;

- operated by pressure fluid and removing the ture inthe presence of two Witnesses.

pstonrfrom contact with the periphery of H. C. t GREEK,

In testimony that VVI daim the voifegong` t, CHAe. CAlzRoLL.`Y

ZACHARY T.` RUSSELL.

(.Vopesl of thisl patent may be obtained-irorlv'pents each, by vddressing*the CommissionerV of Patents,`

' Washing-ton, D. C. 

